Gin rib grinder



Oct. 24, 1933. J, BEHLE 1,931,819

GIN RIB GRINDER Filed Feb. 3, 1930 6 Sheets-Sheet 1 damp/1 36/2/6 J. BEHLE GIN RIB GRINDER Oct. 24, 1933.

Filed Feb. 3, 1930 6 Sheets-Sheet 2 J. BEHLE GIN RIB GRINDER Oct. 24, 1933.

6 Sheets-Sheet 3 Filed Feb. 3, 1930 6.1T \m QM L/o/epb Bet/e w-l- J. BEHLE GIN RIB GRINDER Oct. 24, 1933.

Filed Feb. 3, 1930 6 Sheets-Sheet 5 Oct. 24, 1933. J, BEHLE 1,931,810

GIN RIB GRINDER Patented Oct. 24, 1933 omens GRINDER Joseph Behle, Dallas, Tex, assignor to The Mlir- I ray Company, Dallas, Tex., a corporation of Texas Application'February 3,1930. Serial No. 425,480 g 13 Claims.

01 by the feet of successive rigs when ground may be maintained at the same gaged width.

A further object 'of the invention is to provide automatic means for gripping and releasing the ribs whereby the latter are rigidly supported dur- '1 ing the grinding and finishing of the feet and are released after said grinding action.

A still further object of the invention is to pro-- vide means for automatically dischargingthe rib from its holder after the grinding action and its '39: release, whereby a successive rib to be ground maybe more readily placed on the rib holder. 7 Another object of the invention is to provide means for automatically spreading the grinding elements after the forward rib foot haspassed 2. 1 therebetween and to again reset said elements to grinding gage when the following foot reaches said elements, whereby the intermediate portion of the rib is not acted upon.

A construction designed to carry out the inven- 39'1 tion will be hereinafter described together with other features of the invention.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings in 3.51 which an example of the invention is shown, and

wherein:

Figure l is a front elevation of a machine constructed in accordance with the invention,

Figure 2 is a side elevation of the same,

Figure 3 is a plan View of the same,

Figure 4 is a partialrear elevation,

Figure 5 is a longitudinal sectional elevation taken on the line 5-5 ofFigure 3,

Figure 6 is a transverse sectional elevation taken on the line 66 of Figure 3,

Figure 7 is a vertical sectional view taken on the line 7-7 of Figure 3,

Figure 8 is a plan view of the work holder and carrier with guide forms-secured to the sides thereof,

Figure 9 is a sectional elevation of the same, Figure 10is a plan view of the rib discharger, Figure 11 is aside eleva ion of the same, Figure 12 is a detail of the drivebelt tighten- 551mg device, and I Figure. 13 is a partial plan taken on the line 13-.-i3 of Figure2; I

In' the drawings the numeral 10 designates upright supports having a cross beam 11 connected intermediate thereof. -A transverse channel beam 12 is suspended from the cross beams 11 and is connected with rear upright supports 13 by longitudinal beams 14 for forming a base for side standards 15. The side standards have transverse supports 16 extending therefromat 5- right angles andv are secured together by cross bars15'.

Mounted on the upper and outer end of the supports 16 is ayoke member .17. Transverse shafts 18 are mounted between each of the side standards 15 and-the ends of each yoke 1'7. A carriage 19 is slidably mounted on the shafts between each of the standards and its respective yoke member 17. Each carriage has a bearing base 20 slidably mounted therein and held against upward displacement by straps 21 cured to the carriage by bolts 22. a V

A. screw 23 is threaded'into the bearing base and extends outwardly and loosely through an opening 24 in a boss 25 of the carriage19, An adjusting wheel 26 is-secured to the screw by a. pin 27 for adjusting the horizontal displacement of the base20 within the carriage 19. -A lock wheel 28 is mounted on the screw 23 andadjacent the wheel 26 for locking the same against accidental movement. By adjusting 'andzfasteniri the base 20 the grinding wheels ll-are held "in proper position and are correctly. spaced to grind the feet of the ribs and thus gage each rib foot as to its width. D.

A coiled spring 29 is mounted under tension circumferentially of the bolt intermediatethe lock wheel 28 and a locking member '30. The member is mounted across theouter ends of the screw 23 and shafts 18 adjacent the yoke 17 and 9 carries bars 31 pivoted at one, end to the centei' thereof for engaging in slots 32 of the shafts 18, whereby the carriage is looked under tension against the standards 15.

Each carriage carries a roller 33 at its inner end mounted in a horizontal position whereby an object of irregular widthpassing between said rollers and in engagement therewith will cause the carriages to reciprocate under tension on the shafts 18. Upon each base 20 is mounted a pair of bearings 34 having journaled therein a shaft 35. A pulley 36 mounted on the shaft 35 intermediate the bearings is driven by a belt 37 which in turn is driven by a pulley 38 mounted on the armature shaft39 of a motor 40. A

grinding wheel 41 of carborundum or other suitable material is mounted on the inner end of the shaft 3.5 and is covered by a guard 42 mounted on the carriage 19.

Each motor 40 is mounted on a swing base 43 pivoted at one end to a base plate 44. The plate 44 is mounted on a cross member 45 supported on a lintel 46 of the upright supports 10. The opposite end of each swing base 43 is supported on the upper end of a vertical adjusting screw 47 threaded in a boss 48 carried by the base plate 44 and depending through the cross member 45, as is best shown in Figure 12. Each screw 4'? has a hand wheel 49 for adjusting the screw whereby the base 43 may be raised or lowered to tighten or loosen the belt.

Each standard 15 has a longitudinal track 56 protruding from its inner side and on which rollers 51 of a work carrier 52 ride. For reciproeating the carrier between the grinding wheels, links 53 rigidly secured to the rear end of the carrier and depending therefrom are connected between opposite links of endlesschains 54 by a pin 55. Each chain is mounted on two sprockets 56 and 57 which have a distance between their centers equal to the length of the work travel, thus providing for the complete reciprocation of the full length of the work between the grinding wheels.

Each sprocket 56 is mounted on an arbor 58 journaled in a bearing 59 of each standard 15. Each sprocket 57 is mounted on an arbor 60 journaled in a bearing 61 of each standard 15.

Each arbor 60-extends through its bearing 15 and has mounted thereon a gear 62 which meshes with a pinion 63 mounted on opposite ends of a counter-shaft 64. Said shaft 64 is journaled in bearings 6.5 of the standards 15 and has a double bearing support 66 mounted thereon adendless chain 68 which in turn is driven by a pulley 69 secured on one end of a drive shaft '70. Said shaft is journaled in bearings '71 of a support '72 secured intermediate the ends of the standards 15 and has a fast pulley 7 3 secured on its other end. The pulley is driven by a belt 74 which in turn is driven by suitable driving means. The loose sprocket 67 has clutch members or teeth 75 provided on one side of its nub for receiving a clutch '76 slidably mounted adjacent said sprocket on the countershaft 64.

The slidable clutch has an encircling groove '7'? for receiving a yoke end 78 of a control lever 79. The lever is pivoted on a brace 80 extending from the standard 15 and is held in a desired position by a notched member 81 secured to the supports 16. By moving the lever 79 to the left, Figure 1, the clutch 76 is engaged with the teeth '75 of the sprocketfi'l, thereby causing the carrier to reciprocate.

The carrier 52 has longitudinally mounted thereon and in its center a rib holder 82 provided with work grips 83 and 84 at its opposite ends for receiving thereon a gin rib A by means of its feet B and C, shown best in Figures 1, 2 and 5. The holder is also provided at its center with a stabilizer comprising a head 85, curved to conform to the center of a rib and supported on the ends of two rods 86. Said rods depend through anopening 87 in the holder and are mounted on springs 88 whereby the rib A is tensionally braced when secured to the holder by the grips 83 and 84. Guides 89 are secured on opposite sides of the stabilizer to the holder 82 for positioning and holding rib A on the stabilizer. Spring guides 90 are provided on opposite sides of each end of the we .1 holder and are secured to guard plates 91 mounted on the standards 15, whereby the ribs A may be quickly and easily applied to said holder.

For automatically operating the work grips 83 and 84, a bell crank lever 92 having a yoke 93 at one end and an eye 94 at the other end is pivotally mounted between brackets 95 depending from the under side of the carrier. The eye 94 has the pin 55 passing therethrough while the yoke 93 has a rod 96 pivotally mounted therein intermediate its ends. One end of the rod 96 is pivoted to one end of a bell crank lever 97 which is pivoted at its center to an arm 96 protruding from the carrier and which has its other end pivoted to the lower end of the work grip 84. The other, end of the rod. 96 is of reduced diameter and extends through a bearing 99 pivoted between one of the ends of double arm levers 160. The reduced end has a coil d spring 101 confined circumferentially thereon between a nut 96 and the-bearing 99, whereby the rod has a slight tensional play.

The levers 100 are pivoted at their centers between brackets 102 secured to the bottom of the carrier 52. The other ends of the levers 100 have a bearing 163 pivoted therebetween through which a reduced end of a rod 104 extends-for receiving a coiled spring 165 circumferentially thereof and confined thereon by a nut 104, whereby the rod has a slight tensional play. The opposite end of the rod is pivotally connected to a bell crank lever 106 pivotally mounted at its center to an arm 107 of the carrier 52. The other end of the lever 106 is pivotally connected to the lower end of the grip 83. r

It may be seen that as the carrier reaches its alternate ends of travel the elevation of the connecting pin 55 changes, thereby actuating the lever 92 and causing the automatic operation of the work grips 63 and 84. When the carrier is at its forward end of travel (Figure 5) the work grips close, thereby gripping the rib A; and when the carrier is at the opposite end of travel the work grips open and release the rib A allowing it to be thrown from the carrier by a discharger l1) onto a shelf 91'.

Said discharger comprises a pair of lovers 108 and 109 having a common pivotal center bolt 110 mounted on a raised support 112. The levers 168 and 109 have a coiled spring 113 mounted between one of the ends of the levers whereby the other ends of said levers are held against tensional expansion. An arm 114 secured to the lever 108 and extending over the lever 109 has a coiled spring 115 mounted between its end and a brace 116 whereby the levers are tensionally held against displacement, in a clockwise direction (Figure 15). V

The discharger is positioned so that when the carrier is at its rear end of travel the rib thereon will engage the lever 168 thereby depressing it and causing the lever 109 to also engage the rib. Both levers being under tension of the springs 113 and 115 will have sufiicient tension to discharge the rib A from the carrier when said rib is released by the work grips. being held under tension by the work grips,'will throw the rib up at the same time the discharger throws the rib sideways, thereby causing the positive ejection of said rib from the carrier.

The stabilizer 85,

msigsr Cams 117 11 8 are mounted on opp o site. sides of the carrier for engagement with the rollers]- 33 of the carriages 19 to cause the separation of saidcarriages, whereby the grinding wheels 11 are'separated to allow that portion of the rib between'thefeet to pass between the grinding wheels. ,Levers'11'9 and 120 are pivotallymount-Y ed at opposite 'endsof each standard 15 and in. opposite relation'by' means of bolts lzl securedthrough the flanges or said standards. The inner end of each of the levers .119 and 120 has a-roller A lever 124 is pivotally mounted to each standard 15 adjacent one of the shafts 18, whereby one end of said leverwill protrude between the carriage 19 and its respective standard 15 (Figure 7). The other end of the lever 124 is connected by a rod 125 to the bar 123. As the carrier reaches its vv forward end of travel the rollers 126 engage the rollers 122 on the levers 119, thereby actuating said levers and moving the bar 123 and the rod 125 rearwardly, whereby the lever 124 is removed from between the carriage 19 and the standard 15 to allow the rollers 33 of the carriage to ride upon the cams 117 and 118. When the carrier reaches its rear end travel the cams 117 engage the rollers 122 of the levers 120 thereby moving the bar 123 and the rod 125 forwardly and moving one end of the lever 124 between the carriage and the standard whereby the rollers 122 are held from engagement with the cams 117 and 118 to allow the carrier to pass freely between the grinding wheels during the forward travel of said carrier.

The levers 119 are positioned so that they will engage the rollers 126 of the carrier while the rollers 33 or" the carriages are in engagement with the cam 117 whereby the levers 124 may be easily removed from between the carriages and the l standards Likewise the levers 120 are positioned so that they will engage the cams 117 while the rollers 33 are in engagement with the cam 118 whereby the lever 124 may be inserted between the carriage and the standard.

Various changes in the size and shape of the diiferent parts, as well as modifications and alterations, may be made within thescope of the apfor disconnecting said driving means.

oppositely mounted grinding wheels, means for reciprocating the carrier between said wheels, an adjustable support for said wheels, a slidable mounting of said support, rollers on the support,

to cams on the carrier for engaging the roller to spread the wheels, 2. pair of endless chains, a

connector between the chains and the carrier,

and means actuated by the connector'for auto- ;matically gripping and releasing the work at opposite' ends of the carrier travel.

3. In a-rib grinding machine, a work carrier,

clutched driving gears for driving the chains, and-a leverage connection controlling the clutch.

151111 agin 'rib' grinding machine, oppositely mounted grinding wheels, a work carrier mounted forreciprocation"between said wheels, a pair of endless chains, a connector between the chains" and the carrier, driving means for thecha'in's, means actuated by the connector for automatical ly gripping the rib feet at one'end of carrier travel, and releasing the same at the other end of carr ier travel, means for bracing the rib at itscen- 'te'r'whengripped byth'e holder, and means'for automatically discharging said rib from the carrier when released by the holder.

6. In arib grinding machine, a work carrier, oppositely mounted grinding elements, means for relatively reciprocating the carrier and the grinding elements for grinding the sides of the feet of a rib, means for automatically discharging the work from the carrier after the grinding action, and means for disconnecting the reciprocating means.

7. In a rib grinding machine, a work carrier, oppositely mounted grinding elements, means for relatively reciprocating the carrier and the grinding elements for grinding the sides of the feet of a rib, and automatic means on the'carrier for gripping the rib during the grinding action and. for releasing said rib after said action.

8. In a rib grinding machine, a rib carrier confined to a rectilinear movement, means for 4 The combination set forth in claim 3 with reciprocating said carrier, means for holding a gin rib on said carrier, oppositely mounted circular grinders between which the rib carrier passes having their fiat sides engaging the rib and rotating in a direction substantially parallel with the travel of the rib, and means for automatically spreading the grinders to disengage from the rib while the intermediate portion thereof is passing between said grinders.

9. In a rib grinding machine, a rib carrier confined to a rectilinear movement, means for reciprocating said carrier, means for holding a gin rib on said carrier, oppositely mounted circular grinders between which the rib carrier, passes having their flat sides engaging the rib and rotating in a direction substantially parallel with the travel of the rib, means for automatically spreading the grindersto disengage from the rib while the intermediate portion thereof is passing between said grinders, and means for adjusting and retaining said grinding elements to gage the width of the feet of each rib.

10. In a rib grinding machine, a frame, a trackway supported thereby, a work carrier slidable upon said traclcway, a pair of grinding wheels,

upon said trackway, a. pair of grinding wheels,

means for reciprocating the carrier between the wheels, means for securely holding the rib on the carrier during the grinding action, means on the carrier for spreadingthe grinding wheels intermediate the rib feet, means at one end of the car rier travel for locking the wheels in spread relation during the return movement of said carrier,

and means at the opposite end of said carrier travel for disengaging said locking means.

12. In a rib grinding machine, a frame, a trackway supported thereby, a work carrier slidable upon said trackway, a pair of grinding wheels, means for reciprocating the carrier between the wheels, means for securely holding the rib on the carrier during the grinding action, and automatic means on the holder for clamping the rib thereto at one end of the carrier travel and for releasing the same at the other end of the carrier travel.

13. In a rib grinding machine, reciprocating means for carrying a gin rib, grinding wheels having flat sides for engaging the sides of the its feet is passing between the sides of said grinding wheels, means for driving said wheels, and mechanical means for driving the carrier means independently of the grinding wheels.

JOSEPH QBEHLE. 

